99 years ago today, on September 3, 1926 (July 27, 1926), the Northern Expedition Army launched a siege battle in Wuhan and Nanchang. On September 7, 1926, the Northern Expedition Army captured Hankou. The picture shows the Northern Expedition Army entering Hankou. On September 2, 1926, Tang Shengzhi, Li Zongren, Chen Keyu and senior officers of each unit held a military meeting and decided to attack Wuchang with the Fourth Army, a part of the Seventh Army and the Second Division of the First Army. The Eighth Army attacked Hankou and Hanyang, cutting off the enemy's reinforcements to Wuchang. Li Zongren was the siege commander and Chen Keyu was the deputy commander. In the early morning of September 3, the troops began to siege the city, and fierce battles broke out outside the city gate of Wuchang. Wu Peifu's army fired heavily with heavy artillery and machine guns on the city walls, Snake Mountain and Phoenix Mountain, and the warships moored on the river also fired heavily. By 6:00 in the morning, the siege troops had to retreat to their original positions and failed to attack Wuchang City for the first time. On the evening of September 3, Chiang Kai-shek, Bai Chongxi, and others arrived at Yujiawan Station in Wuchang. A siege meeting was held on September 4, and it was limited to 48 hours to capture Wuchang. And a reward was issued for the siege. In the early morning of September 5, the Fourth and Seventh Corps launched a general attack on Wuchang again. By noon of the same day, the troops were too casualties and stopped attacking. On September 6, Liu Zuolong, the defenders of Hanyang, revolted before the front. On the 7th, the Second Division of the Eighth Army crossed the Hanshui River and captured Hankou. So far, two of the three towns of Wuhan have been captured. Wu Peifu fled to Xinyang, Henan, leaving more than 20,000 troops to defend Wuchang. Because the Northern Expedition Army won the battlefield of the two lakes, Sun Chuanfang could not remain neutral, so he quickly mobilized the main 140,000, concentrated in Jiangxi, and prepared to attack the two lakes occupied by the Northern Expedition Army from the flanks. Zhang Zuolin sent Sun's old boss, Wang Zhanyuan, to Nanjing to see Sun, saying that the northern forces must be united in order to resist the south. Sun sent a message to Zhang on September 8, saying: "I am willing to follow the left and right, and we will overcome the decadent situation together." Zhang called back on September 9: "Yushuai has suffered a new setback, and Wuhan has been lost. The southeast half of the wall depends entirely on my brother's pillar. My brother put the big picture first, and he thought it was a small gap, so he went to the east If necessary, dare not fight. "Sun Chuanfang's concerns about Fenghuang were temporarily eliminated, and he concentrated all his efforts on Jiangxi to deal with the Northern Expedition Army. The center of gravity of the Northern Expedition then shifted from the two lakes to Jiangxi. The troops of the Northern Expedition Army on the Jiangxi battlefield consisted of two divisions of the Second, Third, Sixth and First Corps. From September 6th, they successively conquered Ganzhou, Pingxiang, Xiushui, Gao'an and other places, and entered the vicinity of Nanchang. At this time, the enemy of Nanchang was only a cavalry regiment of Deng Ruzhuo, with about 600 troops defending. On September 19th, the Northern Expedition Army, with the cooperation of workers and students in Nanchang City and the Jiangxi Provincial Police Force, captured Nanchang in one fell swoop. Chiang Kai-shek, who was in Pingxiang, was overjoyed when he heard the news and visited the Anyuan Coal Mine with great enthusiasm. That night, he attended the welcome meeting of all walks of life in Pingxiang and Sun Chuanfang was shocked to hear that Nanchang had been lost. On September 21, Sun arrived at Jiujiang from Nanjing to personally supervise the battle. He quickly dispatched the first, second, and thirteenth front armies of the elite troops to counterattack from the north and south, and ordered Deng Ruzhuo to retake Nanchang within 48 hours. The main force of the Northern Expedition Army attacking Nanchang was mainly more than 10,000 members of the Sixth Army, and there was also the First Division of the First Army, which was directly affiliated with Chiang Kai-shek. Wang Bailing, the commander of the First Division, did not execute the order to cut off Nanxun Road, so Sun Chuanfang calmly reinforced the Northern Expedition Army attacking Nanchang and its vicinity. After Wang Baoling entered Nanchang, he got carried away and slept in a brothel for fun. The enemy suddenly attacked. The division was almost wiped out as soon as it came into contact with the enemy because there was no master in the army. Wang Baoling and the party representative Miao Bin escaped alone. On September 21, the Northern Expedition Army withdrew from Nanchang. On the 22nd, the Northern Expedition Army entered Nanchang again, and withdrew on the 24th. After Deng Ruzhuo's army entered the city on the 24th, the city was closed for three days, and they began to hunt and kill those who cooperated with the Northern Expedition Army. Cao Yuan, a member of the Communist Party of China who died during the attack on Nanchang, Deng Yanda, and a Soviet advisor supervised the female ambulance team during the attack on Wuchang under Wuchang City. The Northern Expedition Army soldiers were preparing to attack Wuchang City